British inventor Clive Sinclair has launched a crowdfunding campaign to produce an electric version of his lightweight foldable A-Bike, with wheels that are just 13 centimetres in diameter (+ slideshow). More

Students behind "the world's first solar-powered family car" have redesigned the vehicle to run for more than 1,000 kilometres on a single charge and produce enough excess energy to power a TV or washing machine (+ slideshow). More

A headset that shows cyclists safer routes through the city in realtime and a projectable blind-spot visualisation for buses and lorries are among the speculative prototypes developed by a team from Future Cities Catapult (+ movie). More

Interview: hybrid and electric technologies are changing the way cars are designed after decades of stagnation, according to BMW's Benoit Jacob, speaking exclusively to Dezeen about the i8 sports car (+ slideshow). More

Dezeen and MINI Frontiers:in this exclusive video interview, Jörg Preißinger of BMW Group Research and Technology explains how the prototype augmented-reality glasses his team have developed can make the solid parts of a car appear transparent. More

Design Indaba 2015: Royal Collage of Art graduate Ackeem Ngwenya has designed a set of all-terrain wheels to help farmers in rural Africa carry heavier loads to market and replace the traditional method of "head-carrying" (+ slideshow). More